Administrator Guide

Important Points to Remember..............................................................................................................................347
18 GARP VLAN Registration Protocol (GVRP)..............................................................................................348
Important Points to Remember................................................................................................................................... 348
Congure GVRP............................................................................................................................................................ 349
Related Conguration Tasks...................................................................................................................................349
Enabling GVRP Globally................................................................................................................................................350
Enabling GVRP on a Layer 2 Interface........................................................................................................................350
Congure GVRP Registration...................................................................................................................................... 350
Congure a GARP Timer............................................................................................................................................... 351
RPM Redundancy...........................................................................................................................................................351
19 High Availability (HA)............................................................................................................................... 353
Component Redundancy.............................................................................................................................................. 353
Automatic and Manual Stack Unit Failover.......................................................................................................... 353
Synchronization between Management and Standby Units..............................................................................354
Forcing a Stack Unit Failover................................................................................................................................. 354
Specifying an Auto-Failover Limit..........................................................................................................................355
Disabling Auto-Reboot............................................................................................................................................ 355
Manually Synchronizing Management and Standby Units.................................................................................355
Pre-Conguring a Stack Unit Slot...............................................................................................................................355
Removing a Provisioned Logical Stack Unit............................................................................................................... 355
Hitless Behavior............................................................................................................................................................. 356
Graceful Restart............................................................................................................................................................ 356
Software Resiliency.......................................................................................................................................................356
Software Component Health Monitoring............................................................................................................. 356
System Health Monitoring......................................................................................................................................356
Failure and Event Logging.......................................................................................................................................357
Hot-Lock Behavior.........................................................................................................................................................357
20 Internet Group Management Protocol (IGMP).........................................................................................358
IGMP Implementation Information.............................................................................................................................. 358
IGMP Protocol Overview..............................................................................................................................................358
IGMP Version 2........................................................................................................................................................358
IGMP Version 3........................................................................................................................................................360
Congure IGMP............................................................................................................................................................. 363
Related Conguration Tasks...................................................................................................................................363
Viewing IGMP Enabled Interfaces............................................................................................................................... 364
Selecting an IGMP Version...........................................................................................................................................364
Viewing IGMP Groups...................................................................................................................................................364
Adjusting Timers............................................................................................................................................................ 365
Adjusting Query and Response Timers................................................................................................................. 365
Preventing a Host from Joining a Group.................................................................................................................... 366
Enabling IGMP Immediate-Leave................................................................................................................................ 369
IGMP Snooping..............................................................................................................................................................369
IGMP Snooping Implementation Information.......................................................................................................369
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